6201 bearing is a deep groove ball bearings, the 6201 Bearing inner diameter is 12mm, the 6201 Bearing outer diameter is 32mm and the 6201 Bearing width is 10mm, this is a popular size that could be used in many applications, the bearing dimensions are 12mm x 32mm x 10mm, 12*32*10 mm, the 6201 bearing can be open, rubber sealed or metal shielded, that depends on your application. That includes 6201-2RS, 6201ZZ and 6201-2Z.
6201 bearing is a deep groove ball bearings, the 6201 Bearing inner diameter is 12mm, the 6201 Bearing outer diameter is 32mm and the 6201 Bearing width is 10mm, this is a popular size that could be used in many applications, the bearing dimensions are 12mm x 32mm x 10mm, 12*32*10 mm, the 6201 bearing can be open, rubber sealed or metal shielded, that depends on your application. That includes 6201-2RS, 6201ZZ and 6201-2Z. The inner diameter is referred as the bore of the bearing and also know as ID of the bearing, the outer diameter is known as OD, the "width" is also known as height of the ball bearing. the 6201 bearing rpm (revolution per minute) average between 15000 to 27000 rpm, the 6201 bearing weight is about 37 grams. 6201 bearing is categorized as single row deep groove ball bearings that can mainly take radial loads, the closures of the bearing can be chosen according to the environment around the bearing, electric motors usually take metal shield closures with grease lubrication, automotive application usually take rubber seal closures with grease lubrication. the most common ball retainer is made of steel, however, some application require nylon cage for higher speeds.